Samuel p



(NoMode.) v

S. P. SMITH.

MACHINE P0P. -OBTAINING AND TRNATING PIBNNS AND QTNNN SNBSTANGNS.

No. 280,968. Patented July 10', 188s.

UNITED STATES PATENT Erice.

` l SAMUEL P. SMITH, OF NEW YORK, N. Y.

MACHINE FDR OBTAINING'ANDTREATING FIBERS AND OTHER SUBSTANCES.

SPECIFICATION formingpart of Letters Patent No. access, dated July 10,1883.

.Application iiled October 16, 1882, (No model.)

l greener dry state, and with or without water or chemical, solution,and also to the purpose of softening ibers which have been previouslyobtained; It is also applicable to the separation of the fibers ofasbestus, and the reduction of other mineral substances.

The invention consists, essentially, in the combination of two flatrubbers arranged face to face, and having their faces toothed,roughened, or serrated, and mechanism for imparting to both of saidrubbers a reciprocating motion, wherebythe materials to be operatedupon, which are fed between said rubbers, are

subjected to a rubbing` action similar to that produced by the palms ofthe hands.

The invention alsoconsists in details of construction hereinafterdescribed.

The accompanying drawing represents a vertical section of a machineembodying my invention.

A B designate the two rubbers which edect the rubbing of the materialsto be operated on. They are arranged face to face and areapproximately-parallel. They are here shown as arranged in an inclinedposition; but they might be placed horizontally or vertically, ifdesired. In this example of my invention the rubbers are shown as havingfaces composed ofvseparate plates c, secured to cross-pieces or planksb, and between the plates c and planks b ofthelower rubber, A, areopenings b', which provide, when desired, for the escape of extraneousor refuse matters through. the rubber. The planks or cross-pieces b ofthe rubber A are secured to beams or supports A.' The plates or piecesu`may be of wood, metal, or other material. The planks or pieces b of theupper rubber, B, are secured to two side pieces or timbers, c, which areprovided on' their outer sides with wheels or rollers d. These wheels orrollers work in guides, each formed by oppositely-,arranged tracks orrails d', secured to timbers or pieces C C', which are carried by theframe-work A2. timber or piece, O, of each guide is rigidly secured tosaid framework, but the upper timber or piece, C, of each guide is hungby the bolts e, and rubber cushions e or other springs are placed aboveor back of it, so as to press it down as far as vthe bolts e willpermit. The cushions orH springs c cause the upper rubber, B, to actupon the materials rwith a yielding pressure, but permit the rubber torise slightly if a large quantity of material comes between the rubbers,or if any foreign substance gets between them. The guide rollers orWheels l and rails or tracks Z' hold the upper rubber, as itreciprocatcs, always in proper relation to the lower rubber,

l .The mechanism for imparting a reciprocating motion to the two rubbersmay be of any suitable character and applied to either end thereof, thathere shown being well adapted for the purpose.

D designates a driving-shaft having upon it a driving-pulley, D', and apinion, f, at each end, which engage with and drive two wheels, E,mounted on a shaft, E. I,

F designates connecting-rods, `one of which is secured to each side ofthe upper rubber, B, at f', and which are operated by cranks form ed bysecu'rin g crank-pins f 2 in the wheels E.

The timbers or beams A of the lower rubber, A, are supported on rollersh, so that said rub ber may be reciprocated. The reciprocating motion isgiven to the rubber by a rock-shaft,

The lower H', carrying a lever, H, at each end, and the upper ends ofsaid levers are connected by rods I with the crank-pinsfi, while thelower ends thereof are connected by rods I with the lower rubber, A. Bythis mechanism the rub.- bers are reciprocated simultaneously, but always in oppositer directions.

The upper end portion of the upper rubber,

' B, is composed of a separate section, B, which is jointed to the mainportion at g, so that it may swing into and out of line with the mainportionB, and the upper portions of the timbers C O, and tracks or railsd d are formed with a steeper incline than the vmain portions thereof.Therefore, as the upper rubber, B, approaches the end of its upwardmovement, the section B is raised, as shown in Fig. l, so as to formbetween it and the face of the lower IOO rubber a comparatively largethroat or mouth, G, for the ready introduction of materials from a feedboard or table, G. As the upper rubber moves downward, the section Bgradually comes into line with the main portion B, and closes upon, or,in conjunction with the lower rubber, grasps the materials and carriesthem downward over the face of the lower rubber.

The plates a, whichrform the faces of the rubbers, maybe toothed,grooved, ridged, serrated, or roughened in any way; but we prefer toform said plates with teeth a', like sawteeth, having straight or abruptfaces and inclined backs. These teeth are coarsest at the upper end ofthe machine, and are made finer and iiner toward the lower or deliveryend of the machine. In order to make the teeth more effective, I mayform grooves or serrations a2 in the inclined backs of the teeth a.

For some purposes the teeth may have sharp cutting-edges; but for otherpurposes they may be slightly rounded at the points, so that they willnot cut.

If it is desired to operate on the materials with water or chemicalsolution, a portion of the rubbers should be arranged in a tank.

If the machine were arranged with the rubbers in a vertical or very muchinclined position, the materials would be carried downward by gravity,or gravity would assisttheir descent.

In lieu of the track or ways and wheels or rollers here used to guidethe rubbers, other forms of guides may be used.

I am aware that it is not new to employ a. reciprocating rubber, incombination with a fixed bed, for grinding or reducing materials placedbetween the rubber and bed, 'and I do not claim such combination as ofmy invention. Y Where both rubbers are reciprocated, as in my machine, Iam enabled to make the rubbers much shorter, and still get the samerubbing action, for if each rubber has a movement of one foot themachine willbe as effective as it would if one rubber were moved twofeet and the other were Xed. y

lThat I claim as my invention, and desire to secure by Letters Patent,is-

l. The combination of two fiat rubbers arranged face to face, and havingtheir faces toothed, roughened, or serrated, and mechanism for impartingto both of said rubbers such a reciprocating motion that one moves inone direction while the other moves in theother direction,'substantially' as and for the purpose herein described.

2. The combination'of two dat rubbers arranged face to face, and thefaces of which are provided with teeth 'having approximately straightfaces and inclined backs, which are Witnesses:

FREDK. HAYNEs,

ED. L. MoRAN.

grooved, serrated, orroughened, and mechan-

